PATHOLOGY

Detailed explanation-1: -The mature renal medulla, the inner part of the kidney, consists of the medullary collecting ducts, loops of Henle, vasa recta and the interstitium. The unique spatial arrangement of these components is essential for the regulation of urine concentration and other specialized kidney functions.

Detailed explanation-2: -The kidney is made up of solid tissue called parenchyma which consists of cortex and the medulla. The renal cortex is the outside section of the kidney, while the medulla is the inside section.

Detailed explanation-3: -The medulla is the inner part of the kidney. It consists of cone-shaped renal pyramids that contain the blood vessels and tubular structures of nephrons. The NIDDKD notes that nephrons are the filtering units of the kidney and include a glomerulus-a specially modified blood vessel that filters blood-and tubule.